Performance is characterized by the amount of useful work accomplished by a computer system compared to the time and resources used (Wikipedia).

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1answer
1k views

Android 4.0.3 sluggish: nandd process hogging CPU

I have an Allwinner A10 tablet clone. While working the tablet "freezes" regularly but not too frequently for a strech of time between 2 and 15 seconds. Described differently: the tablet is useable ...
1
vote
1answer
5k views

Samsung Note 2 slow down

I find my note 2 is getting slower and slower after using it for 1 year. Is there anything I can do to make my phone run normally/faster. It looks like the memory is approaching to the max usage. Is ...
0
votes
1answer
52 views

My icons in the homescreen are not showing up (galaxy s6 edge)

I have a Samsung Galaxy S6 Edge and I bought it about 2-3 weeks ago. Its performance has been weakened lately, first snapchat stopped working and every time I open it crashes. And now none of app ...
0
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1answer
47 views

Android-System causes my smartphone to lag

The Process Àndroid-System causes my Smartphone to lag very often since it uses much CPU and drains my battery. Restart does not work. There is no other process using as much CPU. MediaServer seems ...
0
votes
1answer
70 views

HTC One internal storage performing very slowly

Using A1 SD, I can see that my HTC One (M7)'s 'internal SD card' (ie, the embedded storage) is incredibly slow compared to other benchmarks listed by anonymous users for the same phone. I'm only ...
0
votes
1answer
82 views

Touch lags in all apps, except keyboard

I've noticed a delay of about a quarter of a second between tapping the screen and the app responding. Thud happens in all apps - it's most obvious in the game "aa", a fast, reflex-based game which is ...
0
votes
1answer
11k views

Sony Xperia E1 D2005 Custom Recovery&CustomROM Flashing?

I want to flash a custom ROM and install custom recovery; but when I enter ROMmanager (my device is rooted) and try to install CRW or TWRP it says "custom recovery does not support D2005 (sony xperia ...
0
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1answer
362 views

How to uninstall Android upgrade

I was asked by my Galaxy Grand to update. It was a 608 MB build update. After done , now I got Android Jelly-bean 4.2.2 . It is making my phone very slow and uses too much phone memory. Want to ...
0
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1answer
147 views

Developing applications under Cyanogenmod? How compatible to vanila Android? (Nexus devices)

If I am to develop (and test) my application under Cyanongenmod (base install, without any additional changes), how confident can I be that I would see similar performance of my application on the ...
0
votes
1answer
62 views

Poor Performance at Low Battery

I'm having an issue where my phone gets sluggish and non-responsive when the battery level gets to around 35% or less. Apps will freeze, it will take the keyboard a long time to appear, and the ...
0
votes
1answer
474 views

Will flashing a custom fix lag on my Android?

I have a 1 GB RAM tablet running a pretty much vanilla Android Jelly Bean 4.1.1 and it's been running very slow. Apps startup time have been slow, noticeable lag exists while scrolling between the ...
0
votes
1answer
900 views

High CPU usage from UEventObserver and inputmethod.latin (Nexus S)

I have kept my Google Nexus S up to date with the latest Android O/S since I've owned it and its always had performance problems to varying degrees. I'm currently running: Android version: 4.1.2 ...
0
votes
1answer
671 views

Sony Reader PRS-T1 becomes unresponsive

My Sony Reader PRS-T1 based on Android 2.2 is acting funny. I had rooted it in the past but is now in the "original" state, upgraded with the latest official firmware. The problem is that many ...
-1
votes
1answer
91 views

Can i read the RAM and CPU usage of other applications-Android

I want to know whether is it possible to monitor the CPU, RAM, Network and Battery usage of each and every application installed in my device through my application dynamically? Does Android's ...
2
votes
0answers
436 views

LG G2 getting sluggier by the day

I'm not sure if this is specific to this model or not, but I am having troubles understanding how four cores of over 2GHz can perform so miserably slow. During the last few days, it's gotten to the ...
2
votes
0answers
874 views

Explain the ondemand CPUFreq governor parameters in SAMSUNG galaxy S4?

I am trying to understand how does the onDemand CPUFreq governor works. I have a SAMSUNG S4 device and I looked into the following file to see the tuneable parameters of SAMSUNG Glaxy S4 GT-i9505 ...
2
votes
0answers
617 views

HTC desire x issues after update to Android 4.1 Sense 4+

Ever since I installed the update to 4.1 I've been having major issues with my desire x. The keyboard disappears frequently while typing, sometimes I can't get it back without closing the app and ...
2
votes
0answers
256 views

TRIM command operability in Android 4.3

Has anyone been able to confirm the usage and operability of the fstrim (TRIM) functionality in the latest Android 4.3 (Jelly Bean) release? I have seen multiple articles mention the operability of ...
2
votes
0answers
135 views

Do Android devices become slower with time?

I own a Galaxy S (2.3.5 / GT-I9000 / BVJV3) and use it since two and a half years. I also have bought more recent hardware, like an iPad Mini and a more recent Android tablet, which comparatively are ...
2
votes
0answers
3k views

Samsung Galaxy S has become very slow

My phone recently has begun to become very slow. At certain times of the day, the phone will completely stop working and will have to be turned off by holding the power button. Sometimes, the lock ...
1
vote
0answers
13 views

Find process causing io

I've been having some serious performance problems with my fairphone (wait times of 1 minute or more before apps open or switching apps, and general lack of responsiveness). I installed System ...
1
vote
0answers
173 views

Text messaging so slow it is nearly unusable

I have a Galaxy S5 running 4.4.2. I am trying to send a text message to a certain contact. When I select their name from the list of messages, there is a 30 second delay. While typing, sometimes ...
1
vote
0answers
273 views

Analyse performance / profile Android System? Why is the system slow?

My Android 4.2.1 tablet is slow, it wasn’t when purchased. As the reason is often the software, I was looking for a tool to analyse the performance of the whole system, but couldn’t find any. What I ...
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vote
0answers
2k views

What is filling my phone's RAM, if not apps?

My Galaxy S3 has gone from snappy to slow over the past few weeks: When I open or change apps it reacts very slowly. When the app is running that app is working fine. It resembles having too little ...
1
vote
0answers
707 views

Android TOP command CPU usage

I'm running a simple command line audio processing program in a shell on my Nexus 10 (Android 4.4.2), and want it to consume 100% CPU while it runs. The reason being, if I know it used 100% CPU, I can ...
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vote
0answers
7k views

HTC One V really slow

I bought my HTC One V exactly one year ago, at first everything went really smoothly and it worked like a charm. It didn't take long before the phone crashed from an unexpected error. The phone spent ...
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vote
0answers
1k views

My OS and phone freeze and lag every time the blue “Show CPU Usage” bar appears. What is it?

Lately, I've been experiencing the very unpleasant phenomenon of my almost new S3 completely locking up and stopping responding to input. It's like a very serious lag that has to either be waited out, ...
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vote
0answers
934 views

Android Ice Cream Sandwich Performance on HTC Vision / Desire Z

I've got a HTC Vision / Desire Z (aka. T-Mobile G2), and I flashed a custom Android Ice Cream Sandwich (ICS) 4.0 ROM on it. Unfortunately, performance leaves a lot to be desired. I've tried the ...
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vote
0answers
513 views

Nexus S: slow, jerky web browser scrolling in ICS (compared to Gingerbread)

My Nexus S was OTA-upgraded yesterday to Ice Cream Sandwich 4.0.3 from 2.3 (Gingerbread), and I'm still finding my way around. One problem I've noticed has been web browser performance, particularly ...
0
votes
0answers
39 views

How to clear sysdump logs from Asus Zenfone 5?

I have an ASUS Zenfone 5 (501CG) 16 GB model while phone is nicely built and good to have if you have one extra power bank. Since few days I see some lag in its UI, I feel it is because of the known ...
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votes
0answers
24 views

How to detect which Android apps were running in background after my phone was lagging just few seconds ago?

I have 200-300 apps on my phone. Sometimes my phone starts responding slowly. I assume, it's because of apps running in background after I unlock my phone. Anyone knows a way how to check, which apps ...
0
votes
0answers
26 views

can a phone detect 3D posture of a person with the camera?

Does an Android phone have everything it needs to reconstruct someone's posture, by using the camera sensors? If yes, are nowadays' phones fast enough for this? Here's a video of what I mean on the ...
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0answers
14 views

how to profile system/low level apps?

I'm having a problem on the LG G2 where Swype and other swyping-type-keyboards are sometimes detecting multi-taps that are close together and occurring at the same moment as word-swypes/gestures. ...
0
votes
0answers
19 views

should (or shouldn't) I clean the ram when I closed all applications?

This might be a bit of a general question but nevertheless: Performance wise: should I, when I kill all apps (or some of them) also clear memory? I know that android keeps a stack of apps ...
0
votes
0answers
65 views

Disable cores on android devices which have overheating problem

I have a multitude of android devices ranging from optimus one to one plus one .and mostly they have all been good choices , stable and good in performance .I have a redmi 1s currently which has ...
0
votes
0answers
14 views

Messaging doesn't scale well

About a year into owning each Android, my messaging starts to slow to a crawl. 10 second hangs, etc... This has happened with every messaging app I've ever used. My first question is: What causes ...
0
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0answers
38 views

Motorola Droid 3 slows down after 2 years

I was using Motorola Droid 3 for about 2 years and when I just bought it, it was very fast and worked without any lags. Now it is very slow, although it is running MiniMoto firmware instead of stock ...
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0answers
115 views

create intentionally high cpu load with ADB command

I am testing my app for its performance under load. I would like to observe my app running with a minimum of other processes running and then while it is competing with other processes for CPU. is ...
0
votes
0answers
556 views

Slow home screen load, applications restarting

The problem has a few symptoms. 1) Whenever I return to the home screen it takes a few seconds to redraw. 2) Most applications restart when I switch back and forth between them. 3) If I go to the ...
0
votes
0answers
950 views

Very specific Asus MeMO Pad HD 7 Wi-Fi problem

I've got a fairly odd problem and have not been able to find a solution for months... I have n Asus MeMO pad HD 7 (ME173X) running Android 4.2.2 which usually does just fine connecting to Wi-fi to ...
0
votes
0answers
239 views

Android extremely slow when USB Debugging

Whenever my android device is plugged into my computer with USB Debugging enabled, it (the entire device: all apps, etc.) becomes extremely slow. I need USB Debugging enabled to install and debug ...
0
votes
0answers
84 views

Does Android indeed need defragment?

I have recently format(not just wiping) userdata partition on Note 2 N7100 and Tab 7.7 P6800. I also restore /data using nandroid and restore internal sdcard by manually copying files. I notice that ...
0
votes
0answers
686 views

Why is the screen rotation slow and freezing the screen?

I have a Samsung Galaxy note 10.1, and the screen rotation before was noticeably quicker. It just recently started to take another second or two to rotate. On top of that, everything on screen will ...
0
votes
0answers
547 views

Why does installing applications freeze my DroidX running Froyo 2.2?

I noticed recently that installing any applications caused my Droid X (Stock rooted Froyo 2.2) to freeze for a while - I mean completely freeze, can't go to home screen or pull down Notification bar ...